Thank you Uhrwerk,

the manual is normlay my first place for advice but i missed this one, my bad.
Just one question in the example in the manual they use char instead of int or var for the array. Can i copy this without problems? And if i use char for this (i dont need big numbers there anyway) would this be correct?
Code:
Test->vertex_numbers = (char*)sys_malloc(Test.hardpoint_counter*sizeof(char));